225493631 has 8 divisors (see below), whose sum is σ = 246976128. Its totient is φ = 204175000.

The previous prime is 225493621. The next prime is 225493663. The reversal of 225493631 is 136394522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225493631 - 2¹⁴ = 225477247 is a prime.

It is a super-2 number, since 2×225493631² = 101694755243128322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225493591 and 225493600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225493621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38075 + ... + 43596.

It is an arithmetic number, because the mean of its divisors is an integer number (30872016).

Almost surely, 2^225493631 is an apocalyptic number.

225493631 is a deficient number, since it is larger than the sum of its proper divisors (21482497).

225493631 is a wasteful number, since it uses less digits than its factorization.

225493631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81933.

The product of its digits is 38880, while the sum is 35.

The square root of 225493631 is about 15016.4453516803. The cubic root of 225493631 is about 608.6646692583.

The spelling of 225493631 in words is "two hundred twenty-five million, four hundred ninety-three thousand, six hundred thirty-one".